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Bh7 typical bishop Sacrifice

Hey Champions! 
During the last webinar, I asked if you know about Bh7 sacrifice, and as there were many "no" answers, today's daily game is dedicated to that topic. 

The 1st position. We take 1.Bh7 Kh7 and 2.Ng5! 
Can you try to calculate all opponents answers? a. Kh8 b.Kg8 c. Bg5 d.Kg6 e.Kh6 

The 2nd position.
Can we go Bh7 again, or Ng5 at first? 

The 3rd position. How to continue the attack?

The best answers will get MoodCoins as always! 
 

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REPLY






Peter N

Peter N 2 years ago

Best
Answer

More difficult than usual because there is no Bc1, which makes ..Kh6 defenses more viable. This is how far I got in my head:

1st position:

1.Bxh7 Kxh7

2.Ng5+


2a.    ..Kh8

3.Qh5+ Kg8

4.Qh7++


2b.    ..Kg8

3.Qh5  Bxg5 (..Re8 4.Qh7+ Kf8 5.Qh8++)

4.hxg5 f6

5.g6   --

6. Qh8++


2c.   ..Bxg5

3.hxg5+ Kg6 (..Kg8 4.Qh5 as above)

4.Qh5+ Kf5

5.Qh7+ g6

6.Qh3+ Kxg5

7.Qh4+ Kf5

8.g4+ Kf4

9.Qg3+ Kg5

10.f4++


2d.   ..Kg6

3.Qd3+ f5

4.exf6+ Kxf6

5.Rh3! Bd6

6.Rf3+ Ke7

7.Nxd5+! exd5

8.Qe3+ and mate


2e.   ..Kh6 (best defense)

3.Qd2 Bxg5 (..Kg6 see 2d.; not sure what happens after a queen move such as Qc8; does white have sth. better than Ng5xe6xf8 ?)

4.hxg5+ Kg6

5.Qd3+ f5

6.exf6+ Kf7

7.Qg3! Rg8

8.Rh7 Kf8

9.Rxg7 Rh8

10.Rf7+! Ke8 (otherwise loses rook and queen)

11.Qg7 Rh1+

12.Kd2 and mate


2nd position:

1.Bxh7 Kxh7

2.Ng5+ Kh6

can't find a win here, e.g.,

3.Qd2 fxg5

3.hxg5+ Kg6 with escape route via f7


1.Ng5 fxg5

2.Bxh7 Kxh7 (else 3.Qh5)

3.hxg6+ Kg6 (..Kg8 is 3rd position)

4.Qh5+ Kf5

5.g4+ Kf4

6.Qh2+ Kxg5 (..Kxg4 Qh3+ is similar)

7.f4+ Kxg4

8.Qh3+ Kxf4

9.Ne2+ Kg5

10.Qh5++


1.Ng5 h6

2.Nh7 with ideas such as Bg6, Qh5, exf6 looks strong but didn't calculate to end


3rd position:

1.Rh8+ Kxh8

2.Qh5+ Kg8

3.g6 Rf5

4.Qh7+ Kf8

5.Qh8++

GM_Avetik Grigoryan

GM_Avetik Grigoryan 2 years ago

Great job, Peter!